Thomas c



(-No Model.)

T. 0. ENTWISTLB, DROP WIRE FOR WARPING AND BEAMING MACHINES. No. 257,131.

Patented Apr; 25, 1882.

'IILIII l/Vl/EIVTUI? Thomas C.

WITNESSES By his Attorney N PETERs. Pnaxo-Lilhogn hcr, vlnhln mn. D. c.

UNITED STATES PATENT OFFICE.

THOMAS C. ENTWISTLE, OF LOYVELL, MASSACHUSETTS, ASSIGNOR TO THE FHENIX MACHINE COMPANY, OF SAME PLACE.

DROP-WIRE FOR WARPING AND BEAMING MACHINES.

SPECIFICATION forming part of Letters Patent No. 257,131, dated April 25, 1882.

Application filed December .20, 1881. (No model.)

To all whom it may concern:

- Be it known that I, THOMAS C. ENTWISTLE, of Lowell, in the State of Massachusetts, have invented certain new and useful Improvements in Dropires for Warping and Beaming Machines and other Machinery, of which the following is a specification.

Myinvention consists essentially in the combination, with drop-wire-supporting bar, of an intermediatedrop-wire bracket or holder which is connected and held to the supporting-bar in such manner as to be capable of sliding or moving longitudinally thereon, and a drop- Wire which,while carried by and moving with the bracket, is pivoted or hinged thereto, so as to be capable of its own independent proper motion; and itfurther consists in the employment, in connection with the supporting-bar, of a drop-wire-carrying bracket of a special construction, as hereinafter described.

The nature of my invention and the manner in which the same is or maybe carried into effect will be understood by reference to the accompanying drawings, in which- Figure 1 is a perspective view of the bracket,

together with a drop-wire hinged or pivoted to it. Fig. 2 is a like View of a portion of the supporting-bar on which in practice a number of such brackets are mounted. Fig. 3 is a sec- "tional side elevation, representing a dropwire bracket, together with its drop-wire, in place on the supportin g-bar. Fig. 4: is a diagrammatical sectional elevation, illustrative of the arrangement and operation of the devices in a warping-machine.

A is the supporting-bar; B, the bracket, and G the drop-wire, hinged or pivoted at a to the bracket.

The drop-wire-carrying brackets and the supporting-bar should be so connected that while the brackets can slide thereon (for the purpose of expanding the drop-wires more orless, according to the-number of threads to be woundon the beam) they will not be liable to be plucked therefrom. The preferred forms of bar and bracket for this purpose are illustrated in the drawings.

The bar A has upon one of its faces a longitudinal rib or bead, b. The bracket B has a hook-like form, so that it may hook over the top or upper edge of the bar and extend part way down upon both faces of the same. That part act the hook-like bracket which is designed to lap over upon the unribbed face of the bar A is flat and plain. The other part or side, (I, of the hook is formed on its inner face in such manner as to receive the rib or head, this being provided for in the present instance by forming in it at the proper point a recess, 0; and it is further provided with a lip, f, which extends beneath and catches under the rib or head b. The lipfand the side 0 are separated by a distance equal to the thickness of the bar A, so that the bracket can be readily applied to the bar by slipping it on at one end of the bar, and then sliding it along until it arrives at its proper place on the bar. When in position thereon it appears as in Fig. 3.

The bracket may, if desired, be made of metal soft or yielding enough to permit its sides 0 cl to spread apart sufficiently to allow it to be fitted to place over the top edge of the bar A instead of from the end of the latter. When the bracket is in place it will be seen that while it can slide freely lengthwise of the bar it cannot be detached or plucked therefrom.

I am enabled by my improvements to obtain great capacity for expansion without liability of the drop-wires to bind or cramp. In warping-machines particularly this is an important feature. In such a machine an expansion of the drop-wires from five hundred to three hundred threads at one expansion is often desired. Under my drop-wire arrangement this expansion can be obtained without producing a ridgy beam and without liability of the drop-wires to be plucked from their support.

Fig. 4 represents diagrammatically the manner in which the drop-wires may be arranged in a warping and bcamiri g machine. When the machine is in operation each drop-wire is held up by the thread that passes through it, as indicated at O and O. \Vhen the thread of any one of the series of drop-wires held on 5 in contact with and operates on the drop-wire C with the eflect of stopping the machine in the usual way by means of well-known connections with a shipping mechanism. G is one of the bridge-pieces which supports the bars D and the supporting-bars A.

Having described my improvements, what I claim, and desire to secure by Letters Patent, 1s-

1. The combination, substantially as hereinbefore set forth, of the supporting-bar, the bracket held to and movable lengthwise of said bar, and the drop-wire hinged or pivoted to the bracket.

2. lhe supporting-bar provided with a rib, 15 bead, or projection, as described, in combination with the hook-like drop-Wire-carryin g bracket formed to fit upon the upper portion of the bar and to engage the rib or bead thereon, substantially as and for the purposes hereinbefore set 20 forth.

In testimony whereof I have hereunto set my hand this 12th day ofDecember, 1881.

THOMAS C. ENTWISTLE.

Witnesses: I

A. 'l. ATHERTON, WILLIAM E1). WHITEHEAD. 

